How to access the secret hidden menus on your iPhone or Android phone.

So you think you’re a smartphone expert. You know your iPhone or Android phone inside and out and you constantly help your friends and family with their mobile problems. Well, we hate to break it to you, but there are still plenty of things that even the savviest smartphone users out there don’t know about.

Here are some codes you can dial into the phone app that will access hidden information and menus in the iPhone: